#include <stdio.h>

int main() 
{
    float height = 0.0;
    float weight = 0.0;
    scanf("%f %f",&weight,&height);
    
    float BMI = weight / (height * height);

    if (BMI >= 18.5 && BMI <= 23.9)
        printf("Normal");
    else
        printf("Abnormal");

    return 0;
}